"I felt like I was in control, as sharp as I would have liked to be," Kuchar said. "I did miss out on a couple of good opportunities, but I also made a handful and got up and down from some pretty ugly places."

Australian teammates Day and Adam Scott lead the World Cup team standings at 11 under, one ahead of the U.S team of Kuchar and Kevin Streelman.

Italy's Francesco Molinari moved up the leaderboard with a 66 and was fourth, while Streelman had a 74 and is in fifth place, five strokes out of the lead.

Molinari won the World Cup with his brother Edoardo in 2009.

"It was obviously a very good day," Molinari said of Saturday's round. "I seemed to play better on the front nine for some reason and then it was a bit of a battle really coming back in. I dropped a shot on 16 and holed a few nice putts for par."

Stuart Manley of Wales had an incredible up-and-down day, following a hole-in-one on the third with an 11 on the fourth. But he slowly recovered with an eagle and birdie on the back nine to finish with a 72, and was tied for eighth.

"The highest high to the lowest low," Manley said.

Masters champion Scott also was tied for eighth after a 68. After an opening 75 that included a 9 on one hole, the Australian has slowly moved up the leaderboard as he attempts to win his third tournament in a row.

But Scott said the Royal Melbourne greens are wearing him down. He won last week's Talisker Australian Masters at Royal Melbourne after winning the Australian PGA Championship the week before, and will try to win the Australian Open next week at Royal Sydney to capture the so-called Triple Crown.

"I've hit so many putts from 50 and 60 feet in the last two weeks it's hard to make them all the time," Scott said. "It's hard to even just two-putt them around here because you're fearful of knocking it seven or eight feet by all the time."